With the increasing number of individuals diagnosed with oncological diseases in Lithuania, support measures that promote patients’ quality of life are becoming particularly relevant. International research indicates that art therapy can serve as an effective form of psychosocial support for individuals facing cancer. However, the implementation of art therapy is still in its early stages in the Lithuanian healthcare system. This article presents a single case study exploring the application of art therapy. for a woman diagnosed with cancer. The qualitative research findings suggest that art therapy may function not only as a supportive intervention for individuals undergoing treatment, but also as a transformative space that facilitates the processing of physical, emotional and spiritual changes associated with the illness.